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| 1 | +use std::{convert::TryFrom, fs}; |
| 2 | + |
| 3 | +use netrc_rs::{Machine, Netrc}; |
| 4 | + |
| 5 | +use crate::{ |
| 6 | + errors::DevrcError, |
| 7 | + netrc::get_user_defined_netrc_path, |
| 8 | + raw::auth::{NetrcAuth, NetrcAuthHeader}, |
| 9 | +}; |
| 10 | + |
| 11 | +pub const HEADER_AUTHORIZATION: &str = "Authorization"; |
| 12 | + |
| 13 | +#[derive(Debug, Clone, Default)] |
| 14 | +pub enum AuthType { |
| 15 | + #[default] |
| 16 | + None, |
| 17 | + Bearer, |
| 18 | + BasicAuth, |
| 19 | + Header(String), |
| 20 | +} |
| 21 | + |
| 22 | +#[derive(Debug, Clone, Default)] |
| 23 | +pub enum Auth { |
| 24 | + #[default] |
| 25 | + Empty, |
| 26 | + Loaded { |
| 27 | + machine: Machine, |
| 28 | + auth_type: AuthType, |
| 29 | + }, |
| 30 | +} |
| 31 | + |
| 32 | +impl TryFrom<crate::raw::auth::Auth> for Auth { |
| 33 | + type Error = DevrcError; |
| 34 | + |
| 35 | + fn try_from(value: crate::raw::auth::Auth) -> Result<Self, Self::Error> { |
| 36 | + let file = get_user_defined_netrc_path().ok_or(DevrcError::NetrcNotFound)?; |
| 37 | + let content = fs::read_to_string(file).map_err(DevrcError::IoError)?; |
| 38 | + let netrc = Netrc::parse(content, false).map_err(DevrcError::NetrcParsingError)?; |
| 39 | + |
| 40 | + match value { |
| 41 | + crate::raw::auth::Auth::Empty => Ok(Auth::Empty), |
| 42 | + crate::raw::auth::Auth::NetrcAuth(NetrcAuth { |
| 43 | + host, |
| 44 | + login, |
| 45 | + auth_type, |
| 46 | + }) => match get_machine(&netrc, &host, &login) { |
| 47 | + Some(machine) => Ok(Auth::Loaded { |
| 48 | + machine, |
| 49 | + auth_type: auth_type.into(), |
| 50 | + }), |
| 51 | + None => Ok(Auth::Empty), |
| 52 | + }, |
| 53 | + crate::raw::auth::Auth::NetrcAuthHeader(NetrcAuthHeader { |
| 54 | + host, |
| 55 | + login, |
| 56 | + header, |
| 57 | + }) => match get_machine(&netrc, &host, &login) { |
| 58 | + Some(machine) => Ok(Auth::Loaded { |
| 59 | + machine, |
| 60 | + auth_type: AuthType::Header(header), |
| 61 | + }), |
| 62 | + None => Ok(Auth::Empty), |
| 63 | + }, |
| 64 | + } |
| 65 | + } |
| 66 | +} |
| 67 | + |
| 68 | +impl From<crate::raw::auth::AuthType> for AuthType { |
| 69 | + fn from(value: crate::raw::auth::AuthType) -> Self { |
| 70 | + match value { |
| 71 | + crate::raw::auth::AuthType::Empty => AuthType::None, |
| 72 | + crate::raw::auth::AuthType::Bearer => AuthType::Bearer, |
| 73 | + crate::raw::auth::AuthType::BasicAuth => AuthType::BasicAuth, |
| 74 | + } |
| 75 | + } |
| 76 | +} |
| 77 | + |
| 78 | +fn get_machine(netrc: &Netrc, host: &str, login: &str) -> Option<Machine> { |
| 79 | + let mut default: Option<Machine> = None; |
| 80 | + |
| 81 | + for machine in &netrc.machines { |
| 82 | + match (machine.name.as_ref(), machine.login.as_ref()) { |
| 83 | + (Some(record_host), Some(record_login)) |
| 84 | + if record_host.as_str() == host && record_login.as_str() == login => |
| 85 | + { |
| 86 | + return Some(machine.clone()) |
| 87 | + } |
| 88 | + (None, Some(record_login)) if record_login.as_str() == login => { |
| 89 | + default = Some(machine.clone()) |
| 90 | + } |
| 91 | + (_, _) => {} |
| 92 | + } |
| 93 | + } |
| 94 | + |
| 95 | + default |
| 96 | +} |
| 97 | + |
| 98 | +impl Auth { |
| 99 | + pub fn get_header(&self) -> Option<(String, String)> { |
| 100 | + if let Auth::Loaded { machine, auth_type } = self { |
| 101 | + let password = match &machine.password { |
| 102 | + Some(password) => password, |
| 103 | + None => return None, |
| 104 | + }; |
| 105 | + let login = match &machine.login { |
| 106 | + Some(login) => login, |
| 107 | + None => return None, |
| 108 | + }; |
| 109 | + |
| 110 | + return match auth_type { |
| 111 | + AuthType::Bearer => Some(( |
| 112 | + HEADER_AUTHORIZATION.to_string(), |
| 113 | + format!("Bearer {}", password), |
| 114 | + )), |
| 115 | + AuthType::BasicAuth => { |
| 116 | + let creds = format!("{:}:{:}", login, password); |
| 117 | + let b64 = |
| 118 | + base64::Engine::encode(&base64::engine::general_purpose::STANDARD, creds); |
| 119 | + Some((HEADER_AUTHORIZATION.to_string(), format!("Basic {}", b64))) |
| 120 | + } |
| 121 | + AuthType::Header(header) => Some((header.to_owned(), password.to_owned())), |
| 122 | + AuthType::None => None, |
| 123 | + }; |
| 124 | + } |
| 125 | + None |
| 126 | + } |
| 127 | +} |
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